PRESBYOND can worsen dry‑eye symptoms, so suitability depends on severity and how well the condition can be controlled before surgery.
Concerns with dry eye
Surface quality affects optics and comfort.
- Pre‑existing dryness may intensify after laser
- Unstable tear film causes fluctuating vision and discomfort
- Dry eye can degrade the quality of blended‑vision optics
- Severe, uncontrolled dry eye is usually a contraindication
- Accurate pre‑operative measurements are harder when the surface is poor
When it may still be feasible
Mild, treatable dry eye can be optimised.
- Use of lubricants, lid hygiene, and anti‑inflammatory treatments pre‑operatively
- Objective improvement in tear‑film tests before proceeding
- Commitment to ongoing surface care after surgery
- Honest discussion that symptoms may temporarily worsen
- Decision that expected visual gains outweigh the risk of increased dryness
